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such a way as to constitute a clear menace to the security of that Contracting
Party, the provisions of Article 1 will apply, without prejudice, however,
to the rights of the other European State concerned.
Should a European Power attempt to undermine the independence of
one of the Contracting Parties by processes of economic penetration or in
any other way, the Contracting Parties will support each other in resistance
to such attempts. Should the European Power concerned thereupon
embark on hostilities against one of the Contracting Parties, the provision
of Article I will apply.
The methods of applying the undertakings of mutual assistance provided
for by the present Agreement are established between the competent navai,
military and air authorities of the Contracting Parties.
Without prejudice to the foregoing undertakings of the Contracting
Parties to give each other mutual support and assistance immediately on
the outbreak of hostilities, they will exchange complete and speedy informa-
tion concerning any development which might threaten their independence
and, in particular, concerning any development which threatened to call
the said undertakings into operation.
(1) The Contracting Parties will communicate to each other the terms
of any undertakings of assistance against aggression which they have already
given or may in future give to other States.
(2) Should either of the Contracting Parties intend to give such an
undertaking after the corning into force of the present Agreement, the other
Contracting Party shall, in order to ensure the proper functioning of the
Agreement, be informed thereof.
(3) Any new undertaking which the Contracting Parties may enter into
in future shall neither limit their obligations under the present Agreement
nor indirectly create new obligations between the Contracting Party not
participating in these undertakings and the third State concerned.
Should the Contracting Parties be engaged in hostilities in consequence
of the application of the present Agreement, they will not conclude an
armistice or treaty of peace except by mutual agreement.
(1) The present Agreement shall remain in force for a period of five years.
(2) Unless denounced six months before the expiry of this period it shall
continue in force, each Contracting Party having thereafter the right to
denounce it at any time by giving six months* notice to that effect.
(3) The present Agreement shall come into force on signature.
The Polish Government and the Government of the United Kingdom
of Great Britain and Northern Ireland are agreed upon the following
interpretation'of the Agreement of Mutual Assistance signed this day as
alone authentic and binding :—
1.—(a) By the expression "a European Power** employed in the
Agreement is to be understood Germany.